function drawChartTreatmentsPerSource() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['A. F. Rose', 8],
    ['Annales du Muséum d\'Histoire Naturelle, Paris', 2],
    ['European Journal of Taxonomy', 2],
    ['F. Schoell', 4],
    ['J. C. Koppe', 2],
    ['Laurentii Salvii', 2],
    ['Laurentius Salvius', 23],
    ['Nodder & Company', 2],
    ['Nova Acta Acad. Leop. - Carol.', 2],
    ['Palaeontologia Electronica', 2],
    ['Panckoucke', 2],
    ['Sanderiano Commissum', 3],
    ['Sanfilippo', 7],
    ['Verhandelingen van de Hollandse Maatschappij van Wetenschappen, Haarlem', 6],
    ['Zootaxa', 3],
    ['Other (17)', 19]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Journal (n=89)',
    fontSize: 'automatic',
    doWeHaveDanglingCommas: 'No ;-)'
  };
  if (window.customizeGoogleChartOptions)
    customizeGoogleChartOptions(chartOptions, 'TreatmentsPerSource', 'pie', 16, 0);
  var chart = new google.visualization.PieChart(document.getElementById('chartDivTreatmentsPerSource'));
  chart.draw(chartData, chartOptions);
}
google.load('visualization', '1', {'packages': ['corechart']});
google.setOnLoadCallback(drawChartTreatmentsPerSource);